21848414 has 16 divisors (see below), whose sum is σ = 38220000. Its totient is φ = 9363312.

The previous prime is 21848401. The next prime is 21848441. The reversal of 21848414 is 41484812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15239 + ... + 16610.

It is an arithmetic number, because the mean of its divisors is an integer number (2388750).

Almost surely, 2^21848414 is an apocalyptic number.

21848414 is a deficient number, since it is larger than the sum of its proper divisors (16371586).

21848414 is an equidigital number, since it uses as much as digits as its factorization.

21848414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31872 (or 31858 counting only the distinct ones).

The product of its digits is 8192, while the sum is 32.

The square root of 21848414 is about 4674.2287064285. The cubic root of 21848414 is about 279.5588887729.

The spelling of 21848414 in words is "twenty-one million, eight hundred forty-eight thousand, four hundred fourteen".